package com.biyesheji.config;

import com.biyesheji.common.JacksonObjectMapper;
import com.github.xiaoymin.knife4j.spring.annotations.EnableKnife4j;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.List;

@Slf4j
@Configuration
//@EnableSwagger2
//@EnableKnife4j
public class WebMvcConfig extends WebMvcConfigurationSupport {

    /*
    *   设置静态资源映射
    *
    * */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开始进行静态资源映射...");
        System.out.println(System.getProperty("user.dir"));
//        registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");
//        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
//        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
//        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
        registry.addResourceHandler("/app/**").addResourceLocations("classpath:/static/app/");
        registry.addResourceHandler("/index.html").addResourceLocations("classpath:/static/");

    }


    /*
     *     扩展 mvc 框架的消息转换器
     *     这个方法在项目启动时会自动调用
     * */

    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {

        log.info("扩展消息转换器...");

        // 创建消息转换对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();

        // 设置对象转换器，底层使用 Jackson 将 Java 对象转为 json
        messageConverter.setObjectMapper(new JacksonObjectMapper());

        // 将上面的消息转换器对象追加到 mvc 框架的转换器集合中
        // 转换器是有顺序的，将我们自己的转换器排到最前面，优先使用
        converters.add(0,messageConverter);
        /*System.out.println("这是我们自己添加的转换器：   "+ converters.get(0));
        System.out.println("这是全部添加的转换器：   ");
        System.out.println();
        for (Object converter : converters) {
            System.out.println(converter.toString());
        }
        System.out.println();*/

    }

    @Bean
    public Docket createRestApi(){
        // 文档类型

        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.biyesheji.controller"))
                .paths(PathSelectors.any())
                .build();



    }

    private ApiInfo apiInfo(){

        return new ApiInfoBuilder()
                .title("茂名民宿短租系统")
                .version("1.0")
                .description("茂名民宿短租系统接口文档")
                .build();
    }


}















